PropertyChangedEventHandler delegate (Windows)

0 out of 1 rated this helpful - Rate this topic

Represents the method that will handle the PropertyChanged event. When building Windows Store apps with the Microsoft .NET Framework, this delegate is hidden and developers should use the System.ComponentModel.PropertyChangedEventHandler delegate.

Syntax

C++


public delegate void PropertyChangedEventHandler(
  Object^ sender, 
  PropertyChangedEventArgs e
)

Attributes

GuidAttribute("50f19c16-0a22-4d8e-a089-1ea9951657d2")
VersionAttribute(NTDDI_WIN8)
WebHostHiddenAttribute()

Parameters

sender

Type: Object

The source of the event.

e

Type: PropertyChangedEventArgs

Event data.

Remarks

When building Windows Store apps with the Framework, this delegate is hidden and developers should use the System.ComponentModel.PropertyChangedEventHandler delegate.

Examples

This example demonstrates how to implement the INotifyPropertyChanged interface and use PropertyChangedEventHandler. For the complete code listing, see the XAML data binding sample.


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DataBinding
{
    public class Employee : INotifyPropertyChanged 
    {
        private string _name;
        private string _organization;

        public string Name
        {
            get { return _name; }
            set
            {
                _name = value;
                RaisePropertyChanged("Name");
            }
        }

        public string Organization
        {
            get { return _organization; }
            set
            {
                _organization = value;
                RaisePropertyChanged("Organization");
            }
        }


        public event PropertyChangedEventHandler PropertyChanged;
        protected void RaisePropertyChanged(string name)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(name));
            }
        }
    }
}

Requirements

Minimum supported client	Windows 8
Minimum supported server	Windows Server 2012
Namespace	Windows::UI::Xaml::Data
Metadata	Windows.winmd

PropertyChangedEventHandler delegate